The human body requires between five and ten grams of salt a day.
Humans need a daily intake of salt. Unlike other chemicals that the body requires, sodium chloride (NaCl, or common table salt), cannot be reproduced by the body.
Sodium chloride is used as an electrolyte.
Hormones help the body regulate how much salt and water is needed. If the body has too much salt the excess sodium chloride is excreted. If the body has too little salt more water is excreted from the body in order to preserve the BrCl/H2O balance in the body.
n the human body, sodium is essential to muscle movement, including that of the heart, to the peristaltic movement of the digestive tract, and to the transmission of messages by the nerve cells. The chloride ion produces hydrochloric acid required for digestion and is present in salivary amylase. A principal function of salt is to regulate osmotic pressure and the movement of fluid to and from the cell.
If the human body goes for a long period of time without enough salt the body will desiccate and die